Lubricator.



S. S. LYON.

LUBRwAToR. APPLIGATION FLED JULY 16, 1910.

Patented Jan. 31, 1911.

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AJ# d /6' Y? N f 2F? l; 'is 5 a t* f 5f" 1H ,3f I Y T @NEVER @YATE f ATENT @Fhllh SAMUEL S. LYON, OF 'LAKE CHARLES, LOUISIANA, ASSIGNGH F NE-1`-IALF TO C. P. MARTIN, OF LAKE CHARLES, LO'U'ISNA,

Patented Jan. 31, 1911.

Serial No. 5753,34?.

LUBRICATOR.

$333,@ Specification of Letters Patent,

Application filed July 1G, 1919.

To all whom it may concern:

.lle it ltnown that l'. SAMUEL S. liften', a citizen ot the United States, residing at Lake Charles, in the parish ot Calcasieu, State ot flionisiana. have invented certain new and uset'ul Vlinpi'ovelnenls in Lubii caters; and l do hereby declare the following to be a itull7 clear, and exact description oit' the invention, such as will enable others skilled in the art to which it appertains to inale and use the saine.

This invention relates to lubricators and particularly that typo wherein a follower employed to eject the lubricant therefrom.

The invention is particularly designed to feed a lubricant having such a consistency thatl it will not readily ilow; to control the rate of feed of such lubricant and to provide ineans whereby the rate of feed will al- 1ays be known.

To this end the invention comprises two superimposed cylinders having the saine diaineter, one of which constitutes the gage cylinder and the other the oil feed cyliiniler; said cylinders having a piston rod extending. longitudinally therethrough and a pair ol pistons or followers mount-ed on said piston rod, one of which is contained within the gage cylinder and the other in the oil feed cylinder; the position ot the followers on said piston rod being such that during their reciprocationY in 'the operation oit Yiceding the lubricant they will. constantly occupy substantially corresponding' positions in their respective cylinders.

The invention further consists in providing a by-pass communicating at its terniinals with the top and bottoni respectively oi the gage cylinder, and in the. provision of a valve in said by-pass for opening and closingl saine.

1n describing the invention in detail ret erence will be had to theaccoinpanying drawing which represents a vertical longitudinal section of a lubricator constructed in accordance with the invention. I

Referring to the drawings, the lubricator is shown as comprising an oil -feed cylinder 1 and a gage cylinder 2 disposed in superiniposcd relation and detachably connected together by a threaded connection as at 3. Disposed transversely across the cylinder 2 a slight distance above the threaded connection 3 is a partition 4l oil staggered forniation which constitutes in connnon thc base ot the gage cylinder and the top of the oil Feed cylinder. 'lhe bottoni of the oil feed cylinder 1 provided centrally with an externally threaded discharge inouth 5, whereby the lubrieator as a whole inay be attached to any desired piece ot machinery. The top of the gage cylinder is closed through the nicdiuni ot a cap (S adapted for detachable threaded engagement therewith; said cap being provid-ed centrally with an aperture T surrounded by an upwardly eX- tending tlange 8. The partition il is liliewise provided with a central aperture 9 disposed in alineinent with the aperture 7 but. or' considerably lessdianieter than the latter. Adapted for a longitudinal movement in the cylinders 1 and 2 with the walls of the apertures T and 9 bearings is a piston rod formed of an upper section 10 and a lower section 11. Said upper section 10 is of a dianicter considerably7 in excess ot the section 11 and has its outer face threaded as at 12 while its lower end is provided with a longitudinally disposed threaded recess 13 and its Vupper end `with a reduced threaded portion tor the reception of a nut 14, which serves to prevent the release of a handle 15 which is screwed on the threads 12 atthe upper end of the section 10. The upper end ot the section 1l is provided with a reduced threaded portion 16 adapted to screw in the recess 13 in the lower end of the section 10. n. follower plate 1T is provided with a central aperture through which the threaded end 15 of the section 11 project-s so that when the last named section is assembled with the section 1() said follower plate will be bound between said sections so as to nieve in unison therewith when the saine are reciprocated. T he follower 1T which it will be noted is disposed above the partition l, has formed on its under tace a centrally disposed externally threaded cylindrical lug 18 around which is {itted a cupped leather washer 19 which held in place against the follower plate 17 by ineens ot an internally threaded binding ring it) which screws on the lug 18.

Formed integrally on the lower end of lthc section 1l and disposed in the cylinder 1 is a follower plate 21 and passing through said plate centrally and into the section 11 is a threaded recess Q2 which is adapted to receive the threaded shank 23 of a binding screw 24T which latter also passes through an aperture in the binding plate 25 so that a leather washer 25 may be secured between the plates 21 and 25 to force said washer outwardly and produce a tight joint between the same and the inner wall of the cylinder l so that during the feeding of the grease from the cylinder l none of the same will be allowed to pass from beneath the plates 2l and 25 to the upper portion of the cylinder.

The under face of the partition il is provided centrally with a tubular projection 27 surrounding the section 1l and threaded internally. Disposed within the projection 27 around the section 1l is a raw hide paoliing 28 which is adapted to be compressed by a follower 29 having a threaded engagement with the internal threads of the projection 27 and surrounding the Section ll. The construction just described serves as a stuft ing box through the instrumentality of which the escape of any product from the cylinder l to the cylinder 2 or vice versa7 by way of the aperture 9 is prevented.

The handle l5 has formed in one wing thereof a channel 30 which opens atone end into the aperture through which the section 10 projects and at its other end through the exterior surface of said wing. Mounted in the channel 30 for longitudinal movement is a friction pin 3l. the inner end of which adapted to bear against and frictionally grip the threaded exterior surface of the section l0. Said friction pin 3l is normally forced into engagement with the section l0 by a spring 82 also disposed in the channel 30 and having one end bearing against the outer end of the pin 31 and the other end against the inner end of a screw plug' 33 mounted in the outermost portion of the channel 80. The function of the structure just described is to prevent rotation of the handle l5 upon the section l0 as the result of jarring when the lubricator is mounted upon a piece of machinery; it being evident that such rotation of the handle would alter its position with respect to the longitudinal axis of the section l0 and thereby vary the extent of movement of the piston rod formed by the sections l0 and 1l in the operation of feeding' the contents of the lubricator. The downward movement of the piston rod and the follower plates carried thereby is automatically effected by a conical coil spring 34 which encircles the section l0 and has one end disposed against the upper face of the plate 17 and the other end against the cap G.

ln order to convey the liquid contained in cylinder 2 from the under side of the plate 17 to the upper side thereof during the operation of the lubricator the partition Ll is stepped at one side so as to form a channel 35 which communicates with a threaded r i l l I l opening 36 in the wall of the cylinder. This opening 36 has mounted therein a plug 37 provided with a bore 38; the outer end of said bore being enlarged and threaded to form a seat for the lower threaded end of a vertically disposed pipe 39, the bore of which communicates with the bore 3S of the plug The upper end of the pipe 39 is provided with a reduced portion 40 having its cuter extremity threaded externally as at ll upon which is adapted to be screwed a nut #l2 for a purpose to be presently described. The bore of said pipe 39 is also threaded at its upper end for engagement with the threaded portion of the shank of a needle valve 43, the lower extremity of which7 whe said valve is fully screwed into the bore closes communication between said bore and a laterally extending duct la formed in the pipe 89. A bracket 45 is intei'loclringly mounted on the reduced upper end of the pipe 39 by means of the nut Llf2 and has formed therein a bore 46, the horizontal portion of which communicates with the duct 44 and the vertical portion of which is tapered downwardly so as to produce a nozzle mouth of comjmratively small cross section. A circular recess is cutin the under face of the bracket d5 around the vertically disposed tapering nozzle portion to form a seat for the upper end of a tubular glass sight feed al; the lower end of which is seated in a circular recess formed in the top face of the upward extension a8 of the cap (i. Communication between the cylinder 2 and the bore of the sight feed 47 is had by means cf a channel @t9 cut through the extension 48 and the cap 6. The vextension t8 is provided with a laterally extending ring portion 50 which is adapted to surround the pipe and assist in supporting the same in its vertical position.

A friction spring` comprising a base meinber 5l and a vertically disposed engaging arm 52 has its base member provided with an aperture through which the reduced upper end of the pipe 39 projects so that when said friction spring is assembled upon the reduced upper end of the pipe 39 by means of the nut 47-2 its base member will be disposed upon the upper face of the bracket and its engaging arm in contact with the periphery of the operating hand wheel of the needle valve such engagement serving to prevent the rotation of the valve et?) du 1ing the operation of the lubricator when mounted upon a machine.

The operation of the lubricator is as follows: ssun'iing the parts to be in the position shown in the drawing andthe gage cylinder 2 filled with a liquid of such consistency that it will readily flow, the handle la' is grasped7 the valve having been previously closed, and the piston rod and follower plates carried thereby drawn upllO esami Yarflly against the influence of the spring 3d. This upward movement of the follower plate 17 will cause the liquid contained in the cylinder 2 to press upon the pper face of the. cupped washer 19 and move the outer edge of said washer away from the inner wall of the cylinder so that the liquid can pass to the under side of the follower plate 1T. lllhen the follower plate il' has lier-u moved to the top of cylinder and the liquid in said cylinder disposed beneath said platey the handle 15 is released. The spring El; then tends to move the followerI plate and piston downwardly, but as the outer edge of the cupped washer l5) is disposed down'- wardly the upward pressure of the liquid beneath the plate ll will cause said washer to be forced outwardly against the inner wall of the cylinder, thus preventingl the passage of the liquid to above the plate 1T and substantially locking the follower plato against movement under the influence of the spring so long the vvalve d3 closes the llore of pipe 39. Y`dfhen the lubrieator is in thisI state the cylinder 1 is detached and filled with the usual lubricating grease and then again attached to the cylinder Q. The lubricator is then attached to the bearing of a desired machine and the operation thereof controlled through maniijiulation of the valve 43; said valve controlling the passage of the liquid from beneath the follower plate 1l" to above said follower plate by way of pipe 39 and sight feed eli'. As the follower plates in cylinders 1 and 2 have the same movement it will be apparent that the product contained in cylinder l will be fed at exactly the saine rate as the liquid is forced from the under side of the follower plate 1'? to the upper side thereof by way of pipe 3) and the pa, 'i

ol the liquid through said pipe is effeetually controlled by the valve i3 and observed through the instrumentality of the sight feed l' so that the rate of feed of the product from c vlinder 1 will always be known to the operator.

lt will be not-ed that after the lubricator has become exhausted the piston or followers may be moved to the opposite end -of the chamber in which they are disposed by screwing the handle 15 on the threads against the flange S. This operation will. as is apparent, more the piston or followers is desired. During this operation the liquid disposed above the piston or followers 1.7 will pass by the washer 19 to below said piston or follower. lllhen this done the handle 15 is then moved to the other end of the section l0 and the lubricator is again ready for use.

lVhat is claimed is 1. A lubricator comprising an oil-feedl cylinder and a liquid-gage cylinder, a follower mounted in each cylinder. means for actuating said followers in unison; and

means for conveying the liquid in the gage cylinder from one sideof the follower therein to the other side during the descent thereof.

A lubricator comprising an oil-feed cylinder and a liquid-gage cylinder, a follower mounted in each cylinder, means for actuating said followers in unison and a pipe line communi rating with ithe interior of said gage cylinder at the top and bott-om thereof for conveying the liquid from one side of the follower thereof to the other side during the descent thereof.

2l. A lubriczlitor comprising an oil-feed cylinder and a liquid-gage cylinder, a follower mounted in each cylinder, means for actuating said followers in unison, a pipe line communicating with the interior of said cylinder at the top and bottom thereof for conveying` the liduid in the gage cylinder from one side of the follower therein to the other side during the descent thereof; and means for controlling the rapidity of flow of said liquid through said pipe line.

4l. A lubricator Comprising an oil-feed cylinder and a liquid gage cylinder, a follower mounted in each cylinder, means for actuating said followers in unison, a pipe line communicating with the interior of said gage cylinder at the top and bottom thereof for conveying' the liquid in the frage cylinder from one side of the follower thereof to the other side during the descent thereof; and a sight feed in said pipe line.

5. A lubricator comprising an oil feed cylinder and a liquid gage cylinder, a follower mounted in each cylinder, means for actuating said followers in unison, a pipe line comnnmicating with the interior of said gage Vcylinder at the top and bottom thereof for conveying the liquid in the gage cylin der from one side of the follower therein to the other side during the descent thereof, a sight feed in said pipe line; and means for controlling the rapidity of flow of said liquid through said pipe line.

G. A lubricator comprising an oil feed cylinder and a liquid cylinder, having their top and bottom in common respectively, a piston extending through said cylinders and mounted for reciprocation therein, av follower mounted on said piston for movement in the oil feed cylinder, a follower mounted on said piston for movement in the gage cylinder, means constantly tending to move said piston and follower downwardly, a pipe line communicating with the interior of said Cylinders at the top and bottom thereof for conveying the liquid therein from one side of the follower to the other during the descent thereof, and means for controlling the rapidity of flow of said liquid through said pipe line, whereby the rapidity of descent of said follower is controlled.

7. A lubricator comprising an oil feed cylinder and a liquid gage cylinder7 a fol Y lower mounted in each cylinder, means for actuating said followers in unison, a pipe line communicating with the interior 0f said gage cylinder at the top and bottom thereof for conveying the liquid in said cylinder from one side of the follower to the other side during the descent thereof; said gage cylinder follower including a cupped washer adapted to permit the passage of the liquid from the top of said follower to the bottom thereof during the ascent of the follower.

8. A lubricator comprising an oil feed cylinder and a liquid gage cylinder, a piston mounted for reciprocation in said cylinders, a follower mounted on said piston for reciprocation in the liquid gage cylinder, a

follower mounted on said piston for recipl l rocation in the oil feed cylinder, a spring interposed between the top of the follower in the liquid gage cylinder and the inner face of the top of theliquid gage cylinder for forcing said piston and followers downwardly7 and a pipe line communicating with said gage cylinder at the top and bottom thereof for conveying the liquid in the gage cylinder from one side of the follower therein to the other side during the descent thereof, a sight feed in said pipe line, and means for controlling the rapidity of How of said liquid through said pipe line.

In testimony whereof7 I affix my signature, in presence of two witnesses.

SAMUEL S. LYON.

lVitnesses JOHN G. EWING, Gr. MUTERSBAUGH. 

